Scholarly record
A LANDSLIDE THREATENING THE SPILLWAY OF A DAM: AN EXAMPLE OF OZEN DAM (SIVAS-TURKEY)
Abstract
Recently, numerous landslides occurred in the southern part of the \"Ozen Dam (Sivas-Turkey) threatening the spillway. Kinematical analyses showed that the potential slope instability direction is NW corresponding to the dominant slope directions. Geotechnical surveys confirmed the rock slopes are highly prone to instability, and failures occurred in the limits between basement rock and debris material in the alteration zone as a planar surface. Pre-existing failures, excavations in the toe of the slopes, low quality of the basement rock unit, saturation of the earth material on the slope causing an increase of the water pressure, high slope grades and highway works on the crown part of the landslides increased the driving forces and decreased the resisting forces. Some stabilization methods would be useful to decrease the resisting forces and increase the driving forces, such as; to control of the surface run-off and groundwater level by surface drain, to change the grade of the slope, buttresses at the toe between slope with spillway wall.
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References9
Al-Homoud, A. S., Saket, S. K. and Husein, A reconstruction.
Bowles, J.E., 1992. Engineeri ng Properties of Soils and Thei r Measurement. McGraw-Hill Inc. New Jersey, U.S.A., 241 p. staras, B., 1997. Landslides in iliotic and marly 172 3th International Multidisciplinary Scientific GeoConference SGEM2003 www.sgem.org
Fuchu, D., Lee, C. F. and Sijing, W., 1999. Analysis of rainstorm-induced slide-debris flows on natural terrain of Lanta u Island, H ong Kong. Engineering Geology, 51, 279- Grain e stability on Upper Carboniferous
Polemio, M. and Sdao, F., 1999. The role of rainfall in the landslide hazards: the case of the Rycr ADAS Min. Ag. For Fish, Cambridge. nce on Ex pansive Soils, Denver, 2, 834- boreh of 26 40%, due to the basement rock alterations.
ger, P. and Harris, J., 198 6. Weathering and slop mudrocks in south-west England. Quarterl y Jour nal of Engineering Geology, 19, 155-
Avigliano urban area (Southern Apennines, Italy). Engineering Geology, 53, 297- 309. oft, D., 1971. Drainage investigations in the south-west field drainage. Expt. Unit Ann. Rep.,
Skempton, A.W., 1953. The co lloidal activity of clays. Proceedings of the 3 rd International Conference on Soil Mechanics, Zurich, 1, 57-61.
Williams, A.A.B. and Donaldson, G., 1980. Building on expans ive soils in South Africa. Proceedings of the 4 th International Confere
Obtained RQD (Rock Quality Designation) values from the ba sement rock cores of the oles drilled in the landslide area indicated to the “poor rock” having the RQD values % to International Conference
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